CT8022 Datasheet, PDF (26/194 Pages) List of Unclassifed Manufacturers – VOIP/VON G.723.1, G279AB TRUESPEECH CO-PROCESSOR

TrueSpeech® Co-Processor
PRELIMINARY/CONFIDENTIAL
4.3 CT8022 Host Connection With External DMA Controller
Version: 1.18
INT
RD
HOST
WR
Data Bus
Address Bus
HOLDA HOLD
CS
RD
WR
DMA Controller
Data Bus
Address Bus
DMA Ch. 0 REQ
ACK
DMA Ch. 1 REQ
ACK
VCC
1K
HSTRD IRQ RXDACK
HSTWR
HSTDB7-0
RXDREQ
CT8022
HSTAB3-0 TXDACK
HSTCS
TXDREQ
Address
Decode
RD CS
WR _RAM
Data Bus
Address Bus
SRAMs
CODEC(
)
Figure 4-1: CT8022 Connection to Host and External DMA Controller
26
DSP GROUP, INC., 3120 SCOTT BOULEVARD
CT8022A11AQC FW Revision 0118
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.